York 92 % eff. furnace will only start & run when i fill the inducer to trap hose with water. Will run about two to three hour and then shut down on # 3 error ( pressure switch) .Please help!
I have fixed almost every one of pc9 -----we have installed in our company,code three{flashes} at first new presure switches installed, same thing,york knows about this,induction motor bearings,could be bad.our local york dist, has boards,inducer, ***.motor, dual press.switch,free.as is known as the only way to fix.after all else is ruled out.one local competator called us if we wanted to join class action suit . good luck.furnaces work good at first, season or two then bam
Testimonial: "Believe have now pin pointed it to weak inducer motor.Removed outside exhaust vent apparatus with three elbows in it. Put one elbow back on .no more "
Bought my York furnace winter of 2007. Recently it would not run. There was a #3 error problem(pressure switch). I removed the air filter, turned off the main switch to the furnace, turned it back on. The furnace ran a few cycles without a problem. Went out and bought a new filter. Seems alright so far.
Check the screen in the pvc intake and exhaust make sure nothing is blocking it.two screens one is usually located at the furnace and the other outside the house.
I checked the pvc pipe outside and it was completely clogged with ice. It's been pretty cold and the ice blocked off any air escape. Some of you might want to check the pvc pipe outside of the house. The furnace started as soon as I hammered the ice away. Furnace is working perfectly. Code 3 solution
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What other parts may need to be replaced besides inducer motor & pressure switch if # 3 error problem persists?
What other defective parts could cause this pressure switch error?
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